"Wireless Network Connection" doesn't have a valid IP configuration".

The network connection to my local network / wireless always fails in my home (yellow triangle with exclaimation mark over the tray icon) in my new Sony Viao Model SVE15113ENB, while other HP lap top works fine.

I've tried using the troubleshooter to resolve the problem, I disable firewall and antivirus but it doesn't help. Windows Network Diagnostics shows:
"Wireless Network Connection" doesn't have a valid IP configuration".

The same PC works fine in my office & other areas. Only in my home it shows no internet access both wireless & local LAN

Are the Wireless Network drivers installed? Can you even see your home SSID on your new laptop? Verify the drivers in Device Manager by going to Control Panel - Device Manager - Netowrk Adapters. You should see one for your ethernet port and one for your wireless.

The problem only on my home network .This is new laptop ( Sony Viao Model SVE15113ENB)
please let me know how to check this.
"Also you might have a static IP address on your wireless device under network adapters. You'll need to check that as well and make sure it's set to Dynamic"

Right Click the network Icon by the clock in your task bar
Choose Open Network and Configuration
Change adapter settings
Look for a wireless connection
Right click and choose properties
Double click Internet Protocol 4
In here you will see if it's static or dynamic - static meanin "Use the following IP address" is checked.

Also - when you click the network icon in your task manager - does it pull up your home netowrk in the list? Maybe you have a bad password if you do see it.

Try running IPCONFIG /ALL on the one that does work, I'm sure if you compare the GATEWAY you'll see a big difference. The one above appears to be an IPV6 type address for the GATEWAY. Bet the one that does work would be 192.168.x.x format.

If so, your network settings are wrong for home. There are tools that will allow a switch of the network setting for different places.